• SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearing
  • SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearing
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SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearing

SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearing

$26.99 USD
$29.99 USD $26.99 USD
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SMR3121.5 Premium ABEC-5 Stainless Steel Ball Bearing
Silicon Nitride Ceramic Balls
21.5 x 31 x 7 mm

SMR3121.5 Premium ABEC-5 Stainless Steel Ball Bearing, bearing is Silicon Nitride ceramic ball.

  • SMR3121.5 Ball Bearing
  • Quality: Premium ABEC-5
  • Closures: Open
  • Material: Stainless Steel
  • Balls: Silicon Nitride Ceramic (Si3N4)
  • Dimensions: 21.5mm x 31mm x 7mm/Metric
  • ID (inner diameter)/Bore: 21.5mm
  • OD (outer diameter): 31mm
  • Width: 7mm
  • Dimensions: 21.5 x 31 x 7 mm
  • Quantity: 1 Bearing

VXB Category: Hybrid ceramic bearings



💡 What Does ABEC-5 Mean?

ABEC-5 is a precision rating from the Annular Bearing Engineers’ Committee (ABEC), indicating that the bearing is manufactured with tighter tolerances for improved accuracy and performance.

Bearings rated ABEC-5 are designed for high-speed, low-friction operation, making them ideal for electric motors, precision tools, 3D printers, and performance equipment where smooth rotation and long service life are essential.

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